LD8115 datasheet(5/12 Pages) LEADTREND

5 / 12 page

LD8115

03/10/2017

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD8115-DS-00 March 2017

Electrical Characteristics

(VCC=15V, TA = 25

C unless otherwise specified.)

PARAMETER

CONDITIONS

Symbol

MIN

TYP

MAX

UNITS

Supply Voltage (VCC Pin)

UVLO(OFF)

VCC_OFF

2.5

2.7

2.9

UVLO(ON)

VCC_ON

2.8

3.0

3.2

Operation Current

VISEN = VOVP=

5V,

VDCDIM = 0V , OUT Pull

Low

IVCC

350

500

A

Gate Drive Output (OUT Pin)

Output Low Level

@2mA sink current

VOUTL

200

400

Internal Reference Voltage(VREF Pin)

Reference Voltage

Good TC

IREF 3mA

VREF

3.04

3.2

3.36

VREF Maximum Output

Current

(1)

IREF

DC Dimming (DCDIM Pin)

Dimming off Threshold

OUT pin pull low

VDIM_OFF

0.09

0.1

0.11

Dimming off Hysteresis

(1)

100

Maximum LED current

threshold at DIM pin

(1)

VOVP

0V,

VISEN

=200mV+/-4mV

VDIM_MAX

2.5

2.6

Internal Filter Resistance

RFILTER

1000



PWM Dimming (ADIM Pin)

DIM Selector

TADIM_OFF

ADIM H/L

Threshold Voltage

ADIMH

2.6

ADIML

0.5

ADIM Input Resistor

RADIM

300

600



DCDIM Discharge Resistor

When ADIM signal from high to

low and TADIM_OFF > 60ms

RDCDIS



Current Control Loop (ISEN PIN)

Maximum LED Current Sense

Threshold Voltage

VOVP = 0V, DCDIM =2.6V

VISEN

196

200

204

Current Loop Input Bias

Current

(1)

ICC_BIAS

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